Buckle



FIG. 1 is a perspective view of a buckle showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a plan view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a perspective view of a male body;

FIG. 10 is another perspective view thereof;

FIG. 11 is a perspective view of a female body;

FIG. 12 is another perspective view thereof;

FIG. 13 is a perspective view of a whistle;

FIG. 14 is another perspective view thereof;

FIG. 15 is a cross-sectional view of the buckle along the line 15-15 in FIG. 3;

FIG. 16 is a cross-sectional view thereof along the line 16-16 in FIG. 3; and,

FIG. 17 is a cross-sectional view thereof along the line 17-17 in FIG. 3.

Outer thick lines indicate outer shapes of the buckle, and inner thin lines indicate inner contour of the buckle for illustration purpose. 

CLAIM The ornamental design for a buckle, as shown and described. 